Disclaimer: I do not own Supernatural or any of its characters. I do not own The Host or any of its characters. I own nothing at all, except the plot.

Author's Note: This is my first Fan-Fiction ever. It is a cross over with Stephenie Meyer's The Host and Supernatural. There will be aliens of sorts, bad demons, werewolves, vampires, and spirits all mentioned in this story. I will try to stay faithful to the show, but I'm not making any promises.

Summary: Set five years after the season 3 finale of Supernatural.Based off of the novel by Stephenie Meyer. Very AU. There used to be only demons, werewolves, vampires, spirits, and ghosts that haunted the Earth, until one day, a space craft lands in the middle of the desert. Invaders take over the desert. Sam and Dean are hunting a powerful demon when the invaders take Sam. Can Dean save Sam from the invaders? Is Sam still there? A crossover of sorts with The Host… Jamie, Jared, Wanda, Melanie, Ian, and others from The Host will appear. Will include flashbacks to the war mentioned in the first chapter.

The Host

Chapter 1

"Finding You Missing"

Dean rolled down the windows of the Impala as far as they would go, trying to get some fresh, cooler air into the car. It was well past nine o'clock in the evening, but the time didn't have any effect on the constant heat in the desert.

Beside Dean in the passenger's seat, Sam nervously crunched an empty plastic water bottle in his hands; squeezing it tightly and then trying to mash it back into place. He had drunk the last contents of the bottle nearly three hours before and was still dying of thirst.

Dean and Sam were on a hunt for one of the lasts of the demons left in the United States. A few years back, there had been a huge war between the demons and the hunters. The hunters had won, but it had cost them a lot. Bobby Singer, the closest thing Dean and Sam had to family, had died in one of the last battles between the two enemies. Sam had nearly killed himself in a rescue attempt when Dean had ended up in hell because of his deal. Jo and Ellen had been missing ever since the first battle. There was still no news of them from anyone the Winchesters talked to.

This demon was a powerful demon, one of the Yellow Eyed Demon's direct descendants. It was currently terrorizing a small, nameless town that was about fifty miles away from Tucson. The way Dean was driving, they would arrive in Tucson in twenty minutes, where they planned to stop and refuel for the final fifty miles that would take them to the demon's town.

Dean was being unusually quiet as he drove the empty miles between the barren desert and the next city. He hadn't stuck in any of his Metallica tapes or turned on the radio to find a rock station in Arizona. He had too much on his mind to pretend to listen to the music. The first was Sam, as per usual. The youngest Winchester barely said anything anymore, not that he had been a chatterbox before the war. Dean knew that he was still freaked about nearly becoming one of the things he had tried so hard not to become, but still, the endless silence was getting annoying. The second was the hunt itself. They had been after this demon for nearly two months now and still had had no luck in finding it or coming anywhere close to finding it. This bothered him greatly. They had never had this much trouble finding anything before, so why the sudden change now? The third and final thing on his mind was his nightmares. Ever since Sam had rescued him from the pit, Dean had always been afraid to close his eyes due to the horrible nightmares he had of hell. Sam had been extremely helpful before his sudden silence and Dean had been almost rid of them before. Now, Sam was about as helpful as a frying pan to the head and Dean could barely go to sleep at night.

Dean found the crackling of the plastic bottle extremely annoying all of a sudden.

"Could you cut that out?" he snapped, irritated. Sam glared at him reproachfully for a second, before throwing the bottle in the backseat of the Impala. Resting his chin on one of his hands, Sam then stared stonily out the window, making no effort to apologize for annoying Dean.

Dean sighed loudly, but Sam barely even blinked. This ongoing silence was beginning to grate on Dean's last nerve and he was getting sick of it. He also knew that if he confronted Sam about it, then his brother would just merely shrug it off and go back to his long, brooding silences.

Dean wondered when the first exit to Tucson was. The sooner he got to a hotel and out of this annoying silence, the better.

"Take the next exit if you want to stay in Tucson tonight," Sam murmured quietly, as if reading Dean's thoughts. Dean took a sidelong glance at his brother, surprised for a second, before smoothly turning onto the off ramp of the interstate.

The roads of Tucson were quiet and dark as Dean drove down a random street, looking for a cheap hotel to stay at. This surprised him more then Sam's directions. Tucson was supposed to be a loud, noisy city similar to Phoenix, not this quiet, deserted place.

"Do you think it has something to do with the strange news?" Sam asked, his voice just as quiet as it had been five minutes ago.

Dean slammed on his brakes, surprised at Sam's question. He stared at his brother in shock for a couple of seconds.

"What are you talking about?" he finally asked.

Sam merely shrugged, going back to looking out the window. Dean sighed and put the car in gear again. For once, he was thankful for the city's strange behavior. No one else was on the streets, which meant no one could hit the Impala at his sudden stop.

"This whole not talking thing is getting seriously annoying," Dean said as he started driving down the street again. "Do you mind telling me what's going on in that physic head of yours?"

He expected no reply at his question, not even a shrug or a shake of Sam's head. He was surprised when Sam actually answered.

"I have been thinking about the war again," he said, his voice still no louder then a murmur. "And about what dad said before he died."

If Dean was surprised before, it was nothing compared to what he felt now. John Winchester had died nearly six years ago, back when Sam was just beginning to hunt with Dean again. Dean shuddered as he remembered the words John had said to him just before he had died. 'Watch out for Sammy. If you can't save him, then you'll have to kill him'.

"Sorry, shouldn't have said anything," Sam muttered, looking away again.

"Sammy," Dean began, but his brother was already shaking his head.

"Just forget I said anything, Dean. It was nothing important anyways," he mumbled.

Dean sighed, wishing for the billionth time that this whole mess with the Yellow Eyed Demon had never happened and that he and Sam had had a normal childhood.

"I wish that too, Dean," Sam murmured, staring out the window. "I wish that more then anything else in the world."

Dean took his eyes off the road for the briefest second, to see a look of horror entering Sam's face. He turned his gaze back to the road, alarmed, just in time to see a huge van right in front of them, barreling towards the Impala.

Dean didn't have anytime to react. His last thoughts were of Sam and he prayed that his brother would be okay just as the van and the Impala collided.

Dean could barely think through the jabs of pain that shot through him every time he breathed. His chest hurt more then any other part of him, though Dean could tell that he was injured all over. There was no part of him that didn't hurt.

He was dimly aware that he was somewhere outside of the Impala and that it was damp and cool, two things that weren't really associated with the Tucson area. He was also vaguely aware that people were talking around him.

"Do you think he's one of them?" a deep, male voice asked.

"Wanda?" another male asked, though his voice was slightly lighter. "What do you think?"

"Unless he's a renegade and was out after curfew just to spite the rest of us, probably not," a high-pitched, reedy, obviously female voice answered. Dean struggled to open his eyes to find out where he was exactly and whom the voices belonged to. He also wanted to make sure Sam was okay.

"He's hurt regardless," another male's voice entered the conversation, his gruffer and older then the others.

"Jeb, we can't risk it. Even if he is another human, what's to say that he's not a spy," the first voice asked.

"Wanda?" the second voice asked again.

"Our kind wouldn't keep him human just to spy," the female, Wanda, said. "They would have probably disposed of him."

"Shut up, all of you," a second female's voice entered the conversation. "It doesn't matter if he is one of us or one of them. We should save him anyways and find out how he escaped notice for so long."

"I think he's starting to wake up," a smoother, gentler voice said, just as Dean managed to wrench his eyes open.

He was lying on his back in the middle of a cave, surrounded by the six people who were arguing about him just a moment ago. Dean wasn't sure if he should be thankful that he had been saved from the car accident, or worried that these people were sitting here calmly discussing his death.

"He's one of us," the woman who spoke second said, with a sigh of relief.

It took Dean a minute to remember how he got here in the first place. Then he remembered: the dark Tucson lights, the van coming at them head on, Sam's look of terror… Sammy, Dean thought as another wave of pain completely unrelated to his injuries swept over him. He was here alone, which meant Sam wasn't with him.

"Who are you?" a tall, dark haired man asked. Dean identified him as the first person that spoke earlier.

"I'm Dean. Who are you?" Dean asked, unable to sound quite as hostile or indifferent as he wanted to. Pain marred his tone, as well as weariness and worry.

"I'm Ian," the second person that spoke earlier spoke up. He was also tall, brawny, and had dark hair. The little girl beside him must have been Wanda, from the sound of her voice. The older man in the back holding the shotgun was definitely Jeb and the taller man in the back must have been the doctor.

"I'm Melanie." The woman who had claimed Dean was one of them spoke up. Dean looked at her in interest; even injured he wasn't a complete imbecile. Melanie was beautiful, with dark brown, shoulder length hair, a nice tan, and a very athletic body.

"I'm Jared," the man who spoke first said, standing somewhat protectively in front of Melanie.

"I'm Doc," the final man said.

"How did I end up here?" Dean asked, wincing as a sudden bright light entered his vision. Doc had turned on a flashlight to inspect Dean's injuries. After nearly complete darkness for a while, the sudden brightness blinded the oldest Winchester.

"One of our raiding parties collided with your car," Ian explained, looking pained. "We're sorry about that, by the way. It was a very nice car."

"Did you find anyone else in the car or near the car with me?" Dean asked. He could care less about the car right now; he would deal with that later. Sam was definitely his top priority.

"I'm sorry," Melanie said, looking sad. "The souls got to the car before we did. Whoever was with you was gone by the time we reached you."

"Sammy's gone?" Dean asked, his voice a sheer whisper. The Winchester brothers hadn't been separated in three years, not since Sam had rescued him from the pit.

"I'm sorry," Melanie repeated. "I truly am."

Dean didn't even realize his pain was beginning to go away as Doc stuck something in his mouth against his will.

"Whose Sam?" Wanda asked softly, her voice also sad.

"Sam's my baby brother," Dean whispered, unable to think up of a better lie to tell these complete strangers. Tears stung the back of his eyes, but he managed to get his emotions under control. "I have to find him."

"Hold it right there, mister," Doc said, motioning for Jared to help him restrain Dean. "You were just in a serious car accident. You need to rest up a while."

"I've never felt better," Dean said, and that was the truth. Whatever Doc had given him, it worked.

"You're feeling the affects of No Pain," Wanda said, her face blank of any emotion. "It will wear off in a couple of hours."

"No Pain?" Dean repeated blankly. Then remembering what Melanie had said about Sam's disappearance, he added, "What's going on here?"

Then it all clicked into place. Sam had known something, something he was keeping from Dean. He had said something about strange news. These strangers knew what Sam knew, if not more. And what was with Wanda's eyes glowing strangely in the dim light? What was going on here?

"Wanda, I think it's best if you explain," Jeb, the man with the shotgun, said.

"Explain what?" Dean asked, totally confused now. He was beginning to feel lightheaded and dizzy, probably after affects of this 'No Pain'.

"Dean, I'm not from Earth," Wanda began. "I'm a soul."

Sam's missing and Dean has just met his first ever alien! Flashbacks are coming in the next couple of chapters and you'll find out what happened to Sam in the next chapter.

For all of you who haven't read The Host, I will do my best to explain what Stephenie Meyer's book was about over the story. If you have any questions, feel free to PM me.

Supernatural Nightmare